Binding-post for loose leaves and other purposes.



I. E. PALMER. BINDING POST FOR LOOSE LEAVES AND OTHER PURPOSES. APPLICATION FILED JUNE 20, 1911.

1,009,556, v Patented Nov. 21, 1911.

n iimssee 1 bavenior: @6141)? I a tluwflPadmer; ifomce Q. /w'W/mm v I 3 j W To all whom itmn'y concern:

= UNITED STATES PATENT OFFICE.

' rsAAc E. PALMER, or mmnnmown, ooimnc'rrcn'r.

" BINDING-POST roe Lbosn LEAVES AND OTHER runrosns.

, Be it known that. I, IsAAo citizen of the United States, and a resident of Middletown, in the county of Middlesex and State of Connecticut, have invent ed an Improvement in Binding- Posts for Loose Leaves and other Purposes, of which the following description, in connection with the accompanying drawings,is a specification, like characters on the drawings representing like parts.

. bodiments thereof This invention relates to binding .posts for loose leaves and other purposes.

In order that the invention may be clearly understood, 1 have disclosed certain eminthe accompanying drawing, wherein Figure 1 is a side elevation of one form of my invention;[Fig. 2 is a vertical central section thereof; Fig. 3 .is a side elevation showing a slightly modified form thereof; and Figs. 4 and 5 are side elevations of-still further modifications thereof.

The binding post embodying my invention is adapted for use in binding or securing loose leaves of account books, memorandum books, catalogues'and other papers. Obviously, however, the binding post is capable of use in other relations. 1

Referring first to, that form of the invention shown in post is indicated at 1, 2, it being composed within each other.

or retainers, one of w of one or more, and herein two, helical or coiled springs 1, 2. Herein said springs are represented as right and left handed and of material elongated in cross section and substantially rectangular, it being evi-. dent, however, that any suitable material may be employed. desired, more than two springs may be employed telescoped At each end, the said rovided with heads hich is .indicated at 3 as .a short 'sleeve having a flange 4. Said sleeve is preferably rigidly secured, as by. solder or otherwise, to the spring or springs. The head; or retainer at the oppositeend' of the post is herem represented as composed of a screw 5'adapted tobe tapped into a sleeve 6, which is itself preferably rigidly secured b to the upper ends of t spring or springs are e springs 1, 2. Be-

6, I interpose a masher 7 which may be inegral with the screw 5, or be soldered there to if desired, or it may be distinct therefrom E. PALMER, a

Figs. 1 and 2,-the body of the .9 passing through and particularly by the employment of I prevent solder or otherwise Specification 01 Letters Patent- I Patented Nov. 21, 1911. Application filed June 20, 1911. Serial No. 634,287.

and held in place between the head of the screw and said sleeve. The covers of a book in connection with which the binding post may be employed are represented at 8'8, the loose leaves or other material being received vbetween said covers and suitably perforated for the reception ofthe post. The covers of the book orthe loose leaves or other parts are held in place by the washer 7 and the flange 4 of the head or retainer 3.

The spring or springs 1, 2 are made of suitable spring metal such as steel. The post is therefore longitudinally expansible and contractible, thuspermittingthe' addition of extra leaves as desired. Moreover, the post is readily and freely flexible laterally in every direction. In the longitudinal expansion or contraction of the springs of the post and in the lateral fiexure thereof, the spires of the springs slide or'move upon each other'freely to accommodate themselves to the flexure or expansion or contraction of the post. In using that form of my invention shown in Figs. 1 and 2, the screw 5 and washer 7 are removed from the sleeve 6,

after which the remainder of the post may be inserted through the perforations in the leaves or other articles. Thereupon the screw 5 and washer 7 are returned to place and bind the leaves together, as will be readilyunderstood.

Instead ofemploymg a screw 5'at one end v of the post, I may-employ heads or retainers 3 at each end thereof as indicated in Fig.

3, one of said heads being removable in any suitable manner, as by being threaded into a sleeve carried by one end of the spring or indi'ated'in Figs. 1 and 2. Or. if

springs, i

one of said heads may be merely desired,

confined or held by friction within the up er 1 ends of the springs, in which case I pre erably employ a cord 9 orthe like passed through the post and having its ends lmotted at 10, as-shown in Fig. 3 wherein for the sake of' c1earness, that portion of the cord the post isnot shown.

By the employment of telescoped springs,

te escoped reversely wound springs, the edges'of the leaves from working their way between adjacent coils of the spring or springs. When-but a single coiled spring is used, the leaves work their way between 'the'coils. v v It is ob 'ousthat in lieu of the heads or retainers shown in Figs. 1, 2 and 3, I may employ any other sultable means, one at least thereof being displaceable with respect to the bodyof the post, so as to permit said post body to be inserted through perforations in the leaves or the like.

may be confined between the covers 14 of. the book by washers 15 and screws 16 which may be generally similar to the screw 5 and washer 7 shown in Fig. 1.

In that form of my invention shown in Fig. 5, I have substituted for the form of spring. shown. 1n Fig. 4, a subsidiary coil spring 17 preferably circular in cross section and having its ends bent into loops 18 confined between the washers 15 and screws 16 at one or both ends of the post.

It is obvious that other forms of sub-.

sidiary expansible elements may be employed, and that they may be attached in any suitable manner to the ends of the binding post.

, Having thus described one illustrative embodiment of my invention, I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

1. A binding post for loose leaves and other purposes comprising in combination a plurality of telescoped coiled springs having sheet retaining means at each end thecoils of said springs overlapping so as substantially to fill the spaces between the coils of the outer spring.

2. A binding post for loose leaves and other purposes comprising in combination inner and outer reversely wound coiled springs, and sheet retaining means for opposite ends thereof.

3. A binding post for loose leaves and other purposes comprising in combination inner and outer reversely wound coiled springs having a head fixed to one end there of, a sleeve fixed to the opposite end thereof, and a screw tapped into said sleeve.

4. A binding post for loose leaves and other purposes comprising one or more springs coiled into tubular form, and heads applied to both ends thereof, in combination with a subsidiary expansible element extending in substantial parallelism with the axis of said spring or springs and detachably se cured to the opposite ends thereof.

5. A binding post for loose leaves and other purposes comprising one or more springs coiled into tubular form, and re taining heads for both ends thereof, in combination with a subsidiary expansible element extending from end to end of said coiled spring or springs and detachably secured to said spring or springs.

In testimony whereof, I have signed my name to this specification, in the presence of two SllbSCI'lblllg witnesses.

, ISAAC PALMER.

Witnesses:

FRED. E. FOWLER,

\ THOS. W. HALLORAN. 

